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JP2010275568A |
To provide a co-refining method for zinc and lead which efficiently obtains zinc and lead from zinc sulfide ores, and to provide a zinc-lead co-sintering apparatus suitable for the method.In the method of co-refining zinc and lead, a raw...
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JP2010269306A |
To efficiently decrease the concentrations of a heavy metal and a sulfate ion in the washed filtrate which is generated when dust is treated and solid-liquid separation is performed and which contains potassium and chlorine as main compo...
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JP4579211B2 |
To provide a method for treating fine powder by which a calcium component and a lead component can be separated and recovered from fine powder containing the calcium component and the lead component by a simple operation while reducing t...
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JP2010248558A |
To provide a method for igniting a raw material in an ignition burner by which an accidental fire trouble is eliminated and a consumption unit of fuel used for the ignition burner is reduced in a sintered mass producing process using a t...
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JP2010248566A |
To effectively separate lead contained in a residue produced in a hydrometallurgy of zinc from silica.A treatment method is a method for treating the residue in the hydrometallurgy of zinc by adding water to the residue produced in the h...
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JP4565178B2 |
To reduce the concentrations of Sb and Sn in molten Pb at a low cost with high precision by a dry process. A metal Cu-containing substance is added to an Sb or Sn-containing molten Pb, and the produced Sb-containing dross or Sn-containin...
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JP4565986B2 |
To provide a heavy metal recovery system from heavy metal absorbing plant bodies and its method reducing possibility of occurrence of various problems like scattering of heavy metals by incineration, and allowing effective utilizing of p...
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JP4555812B2 |
To obtain only pure material by eliminating only impurities from pure material containing the impurities (mixture) by the principle of fractional crystallization or recrystallization. The screw conveyer type purifying device includes a s...
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JP4546732B2 |
The invention provides an apparatus that separates solder from solder dross, comprising first and second rolls and a fixture. The first roll has a substantially cylindrical surface and is rotatable about a first longitudinal axis. The se...
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JP2010190551A |
To provide a method for charging recycled reduction materials into a furnace to hold the recycled reduction materials at a predetermined position.In the method for charging recycled reduction materials, a tire is rolled and charged into ...
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JP4525453B2 |
To provide a slag-fuming method which produces dust containing zinc and lead with little amount of arsenic and antimony, and a slag that stably satisfies standards for a soil environment, from a slag produced in a smelting furnace for sm...
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JP4525009B2 |
To provide a method of effectively utilizing waste such as waste plastics, waste oil, carbon-containing sludge and waste solutions at the time when, e.g., metal oxide-containing dust or sludge is subjected to reduction or smelting reduct...
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JP4488658B2 |
To suppress corrosion caused by liquid metal showing high corrosiveness to a structural member by controlling the concentration of oxygen dissolved in the liquid metal, using a mixed conductor with oxygen penetrability. The mixed conduct...
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JP4478637B2 |
To provide a method for efficiently and easily recovering copper from copper converter dust. In the method for treating copper converter dust, at least copper sulfide comprised in copper converter dust is recovered by a grain size differ...
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JP4478585B2 |
To contribute to establishment of a resource circulation type society in a method in which lead, zinc and copper are separately recovered from flying ash generated by calcination or melting treatment of industrial waste such as shredder ...
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JP4470888B2 |
A method of slag fuming wherein a slag containing arsenic or arsenic and antimony together with zinc and lead is heated and reduced in a slag fuming furnace, and zinc and lead are separated by evaporation, characterized in that it compri...
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JP2010516891A |
Wet process of low environmental impact recovers the lead content of an electrode slime and/or of lead minerals in the valuable form of high purity-lead carbonates that are convertible to highly pure lead oxide by heat treatment in oven ...
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JP4461283B2 |
The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process allows for the valorisation of meta...
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JP2010511786A |
A system and a method for electroslag smelting, involving a furnace having a wall, an internal atmosphere, and an external atmosphere; a trough for accommodating an ore being smelted into a molten metal and a slag, the trough being dispo...
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JP2010043344A |
To provide an apparatus and a method for recovering metal by which the metal is efficiently recovered from an acid waste fluid produced when removing a metal element in an aquatic product and the eluate can be reused.The apparatus compri...
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JP4420216B2 |
To separate and recover lead from a gas produced in the treatment of wastes containing Pb, Zn, S, and Cl in a reducing heat treatment furnace. The method for treating a cleaning liquid containing an insoluble residue obtained by cleaning...
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JP4406745B2 |
To provide a low-cost means by which, from a substance containing Sn, Pb and Cu, Pb is separated from Sn and Cu. Treatment where a substance containing Sn, Pb and Cu, e.g., dross generated in a Pb refining stage is immersed into a sulfur...
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JP2010007104A |
To obtain powdery dross without using an impeller-breaker, which needs high energy consumption and causes dusting and noise, and without causing any operating trouble caused by non-solidified lead stuck to the surface of the dross.The ap...
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JP2010007135A |
To provide a rotary kiln for sulfurizing and refining and a method for sulfurizing and refining copper dross using the kiln, with which while preventing local over-heat in the rotary kiln, melting time can be shortened.The rotary kiln fo...
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JP2009299118A |
To provide a method for refining crude lead, which greatly shortens an operating period of time compared to a conventional method and saves energy.This refining method includes: heating and melting the crude lead which has been produced ...
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JP2009544846A |
Disclosed is a method for reducing metalliferous material to a reduction product. Also disclosed is an apparatus for reducing metalliferous material to a reduction product.
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JP2009256741A |
To provide a technique for efficiently recovering a large amount of various valuable metals from waste batteries by a dry process.The method comprises separating and recovering the specific metal by charging and loading metal-containing ...
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JP2009242934A |
To provide a method for charging raw material into a top-blowing type sintering machine, in which the raw material is charged through a hopper to form an ore layer on a fire-grate in a Dwight-Lloyd system top-blowing type sintering machi...
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JP2009242850A |
To provide a method capable of treating lead in which all are performed using a wet process.The method for leaching lead slag is a method for removing at least copper and zinc in a lead slag which is a smelting intermediate product of no...
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JP2009219965A |
To provide a treatment method of fine powder containing a calcium component and a lead component capable of recovering a lead component with a high recovery rate by separating the calcium component and lead component from the fine powder...
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JP2009221491A |
To provide a method for sintering a raw sulfide material containing a raw oxide material, which can acquire adequate productivity in a production of a sintered lump and enhance such a quality that the sintered lump contains less remainin...
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JP2009209388A |
To provide a slag-fuming method where, in a slag-fuming method in which, while charging slag containing zinc, lead, arsenic and a halogen group element produced from a refining furnace in zinc and/or lead refining, and a copper source in...
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JP2009209405A |
To provide a smelting method for efficiently recovering valuable metals such as copper and lead from a copper-containing dross that is produced in a smelting process of smelting zinc and/or lead.The method for smelting the copper-contain...
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JP2009209389A |
To provide a slag-fuming method where, when a fuming furnace having an electric furnace type fusion section is used, the reduction in the temperature of a fused body accompanying the charge of a copper source to the fusion section is sup...
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JP2009202065A |
To provide a treatment method capable of individually separating and recovering a calcium component in a form of calcium hydroxide and a lead component from fine powder comprising the calcium component and the lead component with excelle...
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JP4310388B2 |
To provide a method capable of recovering high-purity indium from an indium-containing material such as ITO target scrap by a simple process. An indium-containing material is dissolved with a hydrochloric acid. Alkali is added to the sol...
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JP2009167469A |
To provide a method for easily and efficiently treating copper-containing dross generated in a refining furnace process.When slag generated in a blast furnace is, after the coarse separation of copper-containing coarse lead and furnace i...
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JP4299548B2 |
To provide a technique for reducing the metal and removing alkali metal, halogen elements and the other impurities by using the powder of metal oxide as the raw material in a rotary hearth type reducing furnace, and to provide a techniqu...
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JP4286052B2 |
To provide a method for treating a lead-containing substance, which efficiently dissolves and extracts lead from the lead-containing substance such as fly ash containing lead, with a small amount of an agent, and to provide a treatment f...
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JP2009127102A |
To provide a method which can attain lead treatment where all can be performed by a wet process.Disclosed is a method for leaching lead where lead sulfate in a lead-containing material is made into lead carbonate with sodium carbonate, a...
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JP4277108B2 |
To reduce recovery cost of useful heavy metals while lightening the excessive treatment burden due to a flux component, which is a large quantity of calcium oxide, or the like, contained in fly ash together with the useful heavy metals a...
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JP4271196B2 |
To provide a method for recovering a valuable metal, which lowers the chlorine content to 2 mass% or below but prevents the valuable metal from being eluted into a washing liquid by dechlorination-washing fly ash containing the valuable ...
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JP4274069B2 |
To provide a method which provides dust containing zinc and lead and having low arsenic and antimony contents and slag stably satisfying soil environmental standards, and realizes reutilization of a copper alloy and a mat including iron,...
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JP4270235B2 |
To provide a treating method of fly ash which is enhanced in handlability, carrying efficiency, and the like by preliminarily pelletizing a fly ash to pellets easy to crack and suitable for slurrying when reutilizing the fly ash as a sme...
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JP2009074115A |
To provide a method for producing lead sulfate where, from powder comprising lead, copper and tin such as dross generated in a lead refining stage, lead is recovered at a high recovery rate, so as to produce lead sulfate.While blowing ox...
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JP2009041051A |
To provide a slag-fuming method which can yield a dust that contains zinc, lead and little amount of arsenic, antimony and a halogen group element, and a slag that stably satisfies a standard for a soil environment at a high volatilizati...
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JP4227854B2 |
To provide a melting and removing device for melting furnace deposits removing the melt deposits depositing on the inner wall face of a melting furnace by improving operation efficiency of a recovery device for valuable metal. This melti...
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JP4219947B2 |
A method for recovering Pb is provided to recover metal lead having high purity highly efficiently from Pb-containing materials such as lead carbonate, lead oxide, lead hydroxide and lead sulfate generated from a metal smelting process o...
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JP4219495B2 |
To easily separate tellurium and lead by leaching a dry-wet treated intermediate of the raw material contg. Te, Pb, or the like, preferably of copper electrolyzed slime with caustic soda. As to the conditions of alkali leaching, preferab...
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JP2009007622A |
To provide a method for melting lead scrap while suppressing the formation of dross and also to provide a method for manufacturing a substrate for a lead battery using the melting method.In the method for melting lead scrap, a lead scrap...
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